US3146796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pulsation dampener
Assignee: Individual
•
Filing: 1961-10-11
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Granted: 1964-09-01
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Expires: 1981-10-11
Abstract
No abstract record available.
Inventors
- 👤 Wilhem S Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:30
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3118
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A FLUID SURGE DAMPENER FOR CONNECTION IN A CONDUIT SUBJECT TO SURGES, SAID SURGE DAMPER COMPRISING: A CLOSED VESSEL; A CYLINDRICAL CHAMBER IN SAID VESSEL HAVING A PERIPHERAL OPENING AND AN END OPENING; A STRUCTURE SUPPORTING SAID CHAMBER IN SAID VESSEL; A VENTURI SECTION FORMED IN SAID CONDUIT; PASSAGE MEANS SEALED FROM SAID VESSEL AND COMMUNICATING FROM SAID VENTURI SECTION TO SAID END OPENING; A FLUID LINE COMMUNICATING BETWEEN SAID VESSEL AND A GAS SOURCE; AND, A VACUUM RELIEF VALVE INTERPOSED IN SAID LINE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |